40630445 has 8 divisors (see below), whose sum is σ = 48791160. Its totient is φ = 32481280.

The previous prime is 40630441. The next prime is 40630451. The reversal of 40630445 is 54403604.

It can be written as a sum of positive squares in 4 ways, for example, as 40804 + 40589641 = 202^2 + 6371^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40630445 - 2² = 40630441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40630441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10541 + ... + 13869.

It is an arithmetic number, because the mean of its divisors is an integer number (6098895).

Almost surely, 2^40630445 is an apocalyptic number.

It is an amenable number.

40630445 is a deficient number, since it is larger than the sum of its proper divisors (8160715).

40630445 is a wasteful number, since it uses less digits than its factorization.

40630445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5775.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 40630445 is about 6374.2015186218. The cubic root of 40630445 is about 343.7825745439.

The spelling of 40630445 in words is "forty million, six hundred thirty thousand, four hundred forty-five".